Voting machines to be tested for presidential primaries

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Logic and accuracy testing of the eSlate Voting System in San Mateo County will begin today to ensure that the system is ready for the presidential primary election on Feb. 5, according to the County Elections Office.

Representatives from the political party central committees in the county will be invited to observe the process, as is any interested member of the public, according to the department. The first portion ofthe process will test the accuracy of the electronic voting system used by voters at the polls on Election Day.

This process will take between three and four days, according to the department. Testers will cast ballots that mirror the current election from a pre-determined "matrix" and, in order to pass, the test tabulations must be a perfect match.

The second portion of the testing will focus on accurate tabulation of paper ballots that will be scanned by Ballot Now machines, according to the department. This testing will begin as soon as the electronic testing is completed.